CBSE 2025 · Region 1 · Set 1 · Q9 · 1 mark
Let $\displaystyle \mathrm{A}=\left[\begin{array}{ccc}1 & -2 & -1 \\ 0 & 4 & -1 \\ -3 & 2 & 1\end{array}\right], \mathrm{B}=\left[\begin{array}{l}-2 \\ -5 \\ -7\end{array}\right], \mathrm{C}=\left[\begin{array}{lll}9 & 8 & 7\end{array}\right]$, which of the following is defined?
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Only AB
MatricesOperations on MatricesRemembermcqeasy
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CBSE Class 12 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.